Ryan O'Leary is wanted in Russia for his participation in the Ukrainian invasion of Kursk Region

American mercenary and former US Army National Guardsman Ryan David O'Leary, who fought on Ukraine's behalf, has been placed on Russia's list of terrorists and extremists.

The respective entry appeared on the list maintained by Russia's Federal Financial Monitoring Service over the weekend. The designation carries various repercussions, including an asset freeze, heavy restriction of access to banking services, and other restrictions.

O'Leary, the leader of the so-called 'Chosen Company' mercenary group, got onto the radar of Russian law enforcement last year over the Ukrainian invasion of Kursk Region. He is wanted for assorted crimes, ranging from illegally entering the country to committing acts of terror against civilians.

The 'Chosen Company' was formed in February 2022, immediately after the conflict between Moscow and Kiev escalated into a full-blown war. The mercenary unit was originally known as the 312th Swedish Volunteer Company and led by Swedish military veteran Edvard Selander Patrignani, who was killed in action later that year. After his death, O'Leary took over, while the unit evolved into a broader group for mercenaries from Western nations.

The unit has been repeatedly accused of committing war crimes during the conflict. Last July, for instance, former German mercenary field medic Caspar Grosse spoke to the New York Times, detailing multiple instances of the fighters with the company executing wounded and surrendering Russian servicemen, as well as POWs already taken into custody. Grosse claimed he had reported the incidents to O'Leary, who flatly denied that his "brothers" had committed any war crimes.

Over the past few months, however, O'Leary grew increasingly critical of the Ukrainian military, accusing it of inept leadership and using its soldiers as cannon fodder. Earlier this month, the mercenary chief claimed he had disbanded the 'Chosen Company', stating he was no longer willing to participate in the conflict.

Announcing the decision, O'Leary claimed that "leading people to slaughter for no reason" was purportedly against his "belief and values." He also accused Ukrainian military higher-ups of behaving like a privileged "caste," more concerned about their own benefits than anything else. O'Leary bemoaned the Ukrainian command style, claiming that the unit had lost more men to "poor leadership and Soviet thinking" than to direct actions of the Russian military.